The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2020
Filed:
Aug. 16, 2019
Ngk Insulators, Ltd., Nagoya, JP;
Shingo Iwasaki, Nagoya, JP;
Takashi Ebigase, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An insulated heat dissipation substrate including: a ceramic substrate; and a conductor layer bonded onto at least one of main surfaces of the ceramic substrate, wherein the conductor layer includes: an upper surface; a lower surface; and a side surfaceconnecting the upper surface with the lower surface; the ceramic substrate includes: a lowest portion; a side surfaceconnecting the lowest portion with the side surfaceof the conductor layer; and a bonding surface at a position higher than the lowest portion, the bonding surface being bonded to the lower surface of the conductor layer; an absolute value (|α−β|) is 20° or less on average; and the side surfacehas a receding portion from an end of the upper surface in the normal direction relative to the tangential line of the contour of the conductor layer as viewed in plane.